If you used the solar nerd calculator you ll have an estimate of how many solar panels you need to generate all of your electricity but then the question is.
Roof square footage for solar.
Number of solar panels per square foot of roof space.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
Luma solar roof shingle pricing varies according to the complexity of the system.
But at 20 watts per square foot a system rated to produce 2 kilowatts would cover roughly 150 square feet while a 3kw system would take up about 225 square feet.
Will that many panels actually fit on your roof.
Because of the variables pinning down exact numbers is tough.
However the cost could go up to 38 per square foot for an edge to edge customized solar roof system.
If you just want to solarize a part of your roof it will cost you about 4 50 per watt.
In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area.
So how many square feet of your roof will your pv solar system cover.
System size kw square footage needed for low efficiency 16 square footage needed for medium efficiency 18 square footage needed for high efficiency 22 5 kw.
A tesla solar roof costs 22 to 45 per square foot which includes the solar roof tiles a powerwall roof and site repairs and complete system installation.
For a 9 45 kw system on a 1 862 square foot roof tesla is charging 64 634 for the solar roof along with 10 050 for a powerwall and another 10 630 for r oof and site repairs.
You might know the square footage of your house but that doesn t tell you the area of roof that s available to fit solar panels.